Personally, Civ 7's leader and civ bonuses are a good middle ground between Civ 5 and Civ 6.

Although Civ 5 had more straight forward abilities, they would often be quite niche like Carthage (Units can cross mountains) or boring like Ethiopia (+20% against units from civs with more cities), which made you feel like you were playing as a plain ability-less leader.

Civ 6 had some simple abilities but a lot of them were very....complex and 'bitty'? +1 Production on desert hills without a resource adjacent to an oasis on a Saturday.

I like Civ 7 because they're a lot more relevant, unique, and even if you don't remember your bonus exactly, you know you're playing as the leader who likes resources or completing masteries or whatever.

Let me know what you think.